The NERD is a Gangster And Mafia named Black Death

This is a story of a girl that is a nerd outside but is the ruler of gangster and mafia world.....
She may look innocent but deep inside she's dangerous
She may look weak but had beaten up and killed thousands of people
She may look ugly but behind all these is a girl that can capture a man's heart and eyes with just one look.....
Pls support my story.. kamsahamnida(캄사함니다)